how to capture a big window?

[Rockone]

i want to capture a window to a bitmap. when the document size is bigger than current viewable rectangle, if using the document size to the captured image will has a big black block. CSize size = GetTotalSize(); CClientDC dc(this); CDC memDc; if(!memDc.CreateCompatibleDC(&dc)) { return ; } CBitmap bitmap; if( !bitmap.CreateCompatibleBitmap(&dc, size.cx, size.cy) ) { return ; } CBitmap* pOldBitmap = memDc.SelectObject(&bitmap); memDc.BitBlt(0, 0, size.cx, size.cy, &dc, 0, 0, SRCCOPY ); if( OpenClipboard() ) { EmptyClipboard(); SetClipboardData(CF_BITMAP, bitmap.GetSafeHandle()); CloseClipboard(); } memDc.SelectObject(pOldBitmap); any suggestion or tips will be great help. thank you in advance.

[Christian Graus]

A window only renders if it's on the visible area. Grabbing outside your desktop just isn't going to do anything.

Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

[Stephen Hewitt]

You can use the PrintWindow function to do this I believe.

Steve

[Rockone]

thank you, i will give it a try.

[Rockone]

thank you! i know that, but i have to get the big one.